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Malus (/ ˈ m eɪ l ə s / [3] or / ˈ m æ l ə s /) is a genus of about 32–57 species [4] of small deciduous trees or shrubs in the family Rosaceae, including the domesticated orchard apple, crab apples (sometimes known in North America as crabapples) and wild apples. The genus is native to the temperate zone of the Northern Hemisphere.
Malus florentina is a species of apple known by the common names Florentine crabapple and hawthorn-leaf crabapple. It is native to the Balkan Peninsula and Italy , and it is grown elsewhere as an ornamental tree .
Malus sylvestris, the European crab apple, also known as the European wild apple or simply the crab apple, is a species of the genus Malus. Its scientific name means "forest apple", reflecting its habitat.
The fruit is a pome or apple ripening in October. Depressed-globular, 2.5–4 cm (1– 1 + 1 ⁄ 2 in) in diameter, crowned with calyx lobes and remnant of filaments; yellow green, delightfully fragrant, surface sometimes waxy. Flesh white, delicate and charged with malic acid. Seeds two or, by abortion, one in each cell, chestnut brown shining ...
Malus baccata is an Asian species of apple known by the common names Siberian crab apple, [2] Siberian crab, [3] Manchurian crab apple and Chinese crab apple. [ 4 ] [ 5 ] [ 6 ] It is native to many parts of Asia, but is also grown elsewhere as an ornamental tree and for rootstock .
Ripe fruits of Malus 'Evereste' with yellowing foliage. Malus PERPETU 'Evereste' is an ornamental cultivar of crabapple that was developed by INRA in 1974 [1] and is registered under their trademark [2] with the name Malus perpetu. [3] [4]
Peraphyllum ramosissimum is a shrub which may reach 3 metres (10 ft) in height. [1] Growing up to 3.5 centimetres (1 + 1 ⁄ 2 in) long, [1] the leaves are simple; they can grow very close together on short shoots but are well separated on longer shoots.
A separate project was initiated by C.S. Crandall of the University of Illinois to breed scab-resistant apples by introducing the VF gene from the crabapple Malus floribunda. His work has been continued by the PRI disease resistant apple breeding program with great success. [5] Among the scab-resistant apples that carry the VF gene are ...